Testing has shown PFAS is contaminating water in the Northern Territory town and residents, fearful of the health implications, are calling for more than just "snippets of information" from authorities.

Although giant pandas have been removed from the endangered list, panda habitats are much smaller today than when the animals were listed as endangered in 1988, according to 40 years of satellite data.

The numbers no longer stack up when it comes to coal-fired power: wind and solar are cheaper, and rising electricity costs have more to do with gas prices and network costs than any "green scheme", writes Ian Verrender.

As the debate rages over how to bring rein in rising energy prices, and ensure a reliable power grid, a snapshot of 2,000 households shows the majority of people see solar batteries as the key to cheaper and more reliable energy.

Dumped pet goldfish are found in Australian estuaries, prompting fears the fish — which are highly adaptive and can grow to 2 kilograms — could make their way into connected river systems and kill off native species.

The more Tony Abbott's anti-renewable energy position gets traction, the worse the policy problem for Malcolm Turnbull and his Government. It raises the question: how can it go on without blowing up? Michelle Grattan writes.

There are 22,000 suitable locations for pumped hydro sites across Australia and if storage was built at a tiny fraction of them, we could be 100 per cent powered by renewable energy within 20 years, researchers say.